Land Rover LR4 2010–2012 — technical service bulletin
Bulletin LTB00572NAS1 · NHTSA communication 10100925 · issued Sep 27, 2013
Technical service bulletin
communication type
Electrical System
component
2010–2012
model years
5
vehicle entries
Official summary
"situation: the heated front windshield may not operate and evidence of heat damage may be found in the engine junction box (ejb) / underhood fuse box. Diagnosis may determine that there may be signs of visible heat damage to either the heated front windshield fuses, heated front windshield relay, or the ejb / underhood fuse box. Cause: at ambient temperatures approximately below 38f/4c, the heated front windshield and heated rear window will turn on automatically. This means the heated front windshield and heated rear window may be on for longer periods of time without the driver knowing. The
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.